These are Shanoa from Castlevania Order of Ecclesia, Maria Renard from Castlevania Rondo of Blood and Charlotte Aulin from Castlevania Portrait of Ruin.

In Castlevania: Harmony of Despair the a bit weird but very fun Castlevania which combines the protagonists of different times you can play as all of them together in the same castles and combine their powers.

This was not drawn as a direct submission for our Castlevania Tribute but uploaded by Control5 during the preparations of the project and when i saw it, i thought it would be a waste to not include it!